self-opinion

[ self-uh-pin-yuh n, self- ]

/ ˈsɛlf əˈpɪn yən, ˌsɛlf- /

opinion of oneself, especially when unduly high.

Origin of self-opinion

First recorded in 1570–80

She was entirely unconscious of the arrogance of self-opinion that was in all she said.

Hester, Volume 1 (of 3) |Margaret Oliphant
I should be sorry to shock your self-opinion, but you were never more mistaken.

Rob Roy, Volume 1., Illustrated |Sir Walter Scott
If I should ever attain to the degree of self-opinion requisite to such an undertaking, I shall labour at it with pleasure.

The Works of William Cowper |William Cowper
My self-opinion rises much by your eulogy of my social qualities.

Life of Lord Byron, Vol. III |Thomas Moore

From obedience and submission spring all other virtues, as all sin does from self-opinion.

Dictionary of Quotations from Ancient and Modern, English and Foreign Sources |James Wood